:root{--color-primary: #457685;--color-primary-light: #3d6b5c;--color-accent: #8b7355;--color-text: #2d2d2d;--color-text-light: #666;--color-bg: #fafaf8;--color-bg-gray: #f0ede8;--color-border: #ddd8d0;--color-white: #fff;--header-height: 64px;--inner-max: 1280px;--inner-pad: clamp(16px, 4vw, 40px);--section-pad: clamp(48px, 6vw, 80px);--radius: 4px;--font-serif: "Noto Serif JP", serif;--font-sans: "Noto Sans JP", sans-serif;--transition: .25s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-serif);font-size:18px;line-height:1.8;color:var(--color-text);background:var(--color-bg);padding-top:var(--header-height)}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}ul,ol{list-style:none}.inner{max-width:var(--inner-max);margin:0 auto;padding-left:var(--inner-pad);padding-right:var(--inner-pad)}.section{padding:var(--section-pad) 0}.section-gray{background:var(--color-bg-gray)}.text-center{text-align:center}.section-heading{font-family:var(--font-serif);font-size:clamp(1.4rem,3vw,2rem);font-weight:700;color:var(--color-primary);text-align:center;margin-bottom:2rem;position:relative;padding-bottom:.75rem}.section-heading:after{content:"";display:block;width:40px;height:2px;background:var(--color-accent);margin:.5rem auto 0}.header{position:fixed;top:0;left:0;width:100%;height:var(--header-height);background:var(--color-primary);z-index:100;box-shadow:0 2px 8px #00000026}.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.header-logo{font-family:var(--font-serif);font-size:clamp(1rem,2vw,1.5rem);font-weight:700;color:var(--color-white);letter-spacing:.2em;white-space:nowrap}.header-nav{display:flex;gap:2rem;align-items:center}.header-nav-link{font-size:.88rem;color:#ffffffe0;letter-spacing:.04em;transition:color var(--transition);position:relative;padding-bottom:2px}.header-nav-link:after{content:"";position:absolute;bottom:0;left:0;width:0;height:1px;background:var(--color-white);transition:width var(--transition)}.header-nav-link:hover{color:var(--color-white)}.header-nav-link:hover:after{width:100%}.hamburger{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;background:none;border:none;cursor:pointer;padding:4px}.hamburger-line{display:block;width:24px;height:2px;background:var(--color-white);transition:transform var(--transition),opacity var(--transition);transform-origin:center}.hamburger.is-open .hamburger-line:nth-child(1){transform:translateY(7px) rotate(45deg)}.hamburger.is-open .hamburger-line:nth-child(2){opacity:0}.hamburger.is-open .hamburger-line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}drawer-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:110;opacity:0;pointer-events:none;transition:opacity var(--transition)}.drawer-overlay.is-open{opacity:1;pointer-events:auto}.drawer{position:fixed;top:0;right:0;width:min(280px,80vw);height:100dvh;background:var(--color-primary);z-index:120;display:flex;flex-direction:column;padding:72px 24px 32px;transform:translate(100%);transition:transform .3s ease}.drawer.is-open{transform:translate(0)}.drawer-close{position:absolute;top:16px;right:16px;background:none;border:none;color:var(--color-white);font-size:1.2rem;cursor:pointer;width:36px;height:36px;display:flex;align-items:center;justify-content:center}.drawer-link{display:block;color:#ffffffe6;font-size:1rem;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.15);letter-spacing:.04em;transition:color var(--transition)}.drawer-link:hover{color:var(--color-white)}@media (max-width: 767px){.pc-nav{display:none}.sp-nav{display:flex}}@media (min-width: 768px){.sp-nav,.drawer,.drawer-overlay{display:none!important}}.mainview{background:var(--color-white)}.mainview-inner{display:flex;align-items:stretch;min-height:520px;gap:0}.mainview-text{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:clamp(32px,5vw,64px) clamp(24px,4vw,56px)}.mainview-heading{font-family:var(--font-serif);font-size:clamp(32px,4vw,50px);font-weight:700;line-height:1.45;color:#2c3333;margin-bottom:1.25rem;letter-spacing:.2em}.mainview-body{font-size:clamp(20px,2.8vw,35px);line-height:1.75;color:#2c3333;font-weight:700;letter-spacing:.2em}.mainview-image-wrap{flex:1;min-width:0;min-height:400px;position:relative;overflow:hidden}.mainview-image{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;object-position:center}@media (max-width: 767px){.mainview-inner{flex-direction:column-reverse;min-height:unset}.mainview-image-wrap{width:100%;min-height:260px;position:relative}.mainview-text{width:100%;padding:32px 20px}.mainview-heading{font-size:clamp(28px,8vw,40px)}.mainview-body{font-size:clamp(20px,5vw,35px)}}.purpose{padding:var(--section-pad) 0}.purpose-subheading{font-family:var(--font-serif);font-size:1.8rem;color:var(--color-accent);margin-bottom:1rem}.purpose-text{max-width:860px;margin:0 auto;color:var(--color-text-light);font-size:1.2rem}.news-section{padding:var(--section-pad) 0}.news-list{max-width:800px;margin:0 auto}.news-divider{border:none;border-top:1px solid var(--color-border)}.news-row{display:flex;gap:1.5rem;padding:1.25rem 0;align-items:flex-start}.news-date{min-width:96px;font-size:1rem;color:var(--color-text-light);padding-top:2px;letter-spacing:.03em}.news-content{flex:1}.news-title{display:block;font-weight:700;font-size:1.2rem;color:var(--color-primary);margin-bottom:.3rem;transition:color var(--transition)}.news-title:hover{color:var(--color-accent)}.news-excerpt{font-size:1rem;color:var(--color-text-light);line-height:1.6}@media (max-width: 599px){.news-row{flex-direction:column;gap:.4rem}}.events-section{padding:var(--section-pad) 0}.events-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}@media (max-width: 900px){.events-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 599px){.events-grid{grid-template-columns:1fr}}.event-card{background:var(--color-white);border:1px solid var(--color-border);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow var(--transition)}.event-card:hover{box-shadow:0 4px 16px #0000001a}.event-card-image-wrap{width:100%;aspect-ratio:16 / 9;overflow:hidden}.event-card-image{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}.event-card:hover .event-card-image{transform:scale(1.03)}.event-card-body{padding:1rem 1.1rem 1.25rem;display:flex;flex-direction:column;flex:1;gap:.4rem}.event-card-date{font-size:.8rem;color:var(--color-accent);font-weight:500}.event-card-title{font-family:var(--font-serif);font-size:.95rem;font-weight:700;color:var(--color-text);line-height:1.5}.event-card-excerpt{font-size:1rem;color:var(--color-text-light);line-height:1.65;flex:1}.event-more-link{color:var(--color-primary);font-size:.8rem;text-decoration:underline}.event-card-updated{font-size:.75rem;color:#aaa}.btn-detail{display:inline-block;margin-top:.25rem;padding:.5rem 1.2rem;background:var(--color-primary);color:var(--color-white);font-size:1rem;border-radius:var(--radius);letter-spacing:.04em;transition:background var(--transition);align-self:flex-start}.btn-detail:hover{background:var(--color-primary-light)}.about-section{padding:var(--section-pad) 0}.about-table{max-width:800px;margin:0 auto;border-top:1px solid var(--color-border)}.about-row{display:flex;border-bottom:1px solid var(--color-border)}.about-label{width:180px;min-width:140px;padding:1rem 1.25rem 1rem 0;font-weight:700;font-size:.88rem;color:var(--color-text-light);flex-shrink:0}.about-value{flex:1;padding:1rem 0;font-size:.9rem;line-height:1.75}.about-list{padding-left:1.1em;list-style:disc}.about-list li{font-size:.9rem;line-height:1.75;padding:2px 0}@media (max-width: 599px){.about-row{flex-direction:column}.about-label{width:100%;padding:.75rem 0 .25rem}.about-value{padding:0 0 .75rem}}.contact-section{padding:var(--section-pad) 0}.contact-text{font-size:.95rem;color:var(--color-text-light);line-height:1.85}.contact-address{margin-top:.5rem;font-size:.9rem}.footer{background:var(--color-primary);padding:clamp(32px,4vw,56px) 0;color:#ffffffd9}.footer-inner{text-align:center}.footer-heading{font-family:var(--font-serif);font-size:1.4rem;font-weight:700;color:var(--color-white);margin-bottom:.75rem;letter-spacing:.06rem}.footer-text{font-size:.95rem;line-height:1.8}.footer-copy{margin-top:1.5rem;font-size:.95rem;color:#ffffff80}.detail-page{padding:var(--section-pad) 0;min-height:calc(100dvh - var(--header-height) - 200px)}.detail-layout{display:grid;grid-template-columns:300px 1fr;gap:2.5rem;align-items:flex-start}.detail-layout.no-image{grid-template-columns:1fr}.detail-thumb{max-width:300px;width:100%;border-radius:var(--radius);cursor:pointer;transition:opacity var(--transition)}.detail-thumb:hover{opacity:.88}.detail-image-hint{font-size:.75rem;color:var(--color-text-light);margin-top:.4rem;text-align:center}.detail-date{display:block;font-size:.85rem;color:var(--color-text-light);margin-bottom:.5rem}.detail-title{font-family:var(--font-serif);font-size:clamp(1.2rem,2.5vw,1.6rem);font-weight:700;color:var(--color-primary);line-height:1.5;margin-bottom:1.25rem}.detail-event-date{display:flex;align-items:baseline;gap:.75rem;font-size:.92rem;color:var(--color-text);margin-bottom:1.25rem;padding:.75rem 1rem;background:var(--color-bg-gray);border-radius:var(--radius)}.detail-label{font-size:.75rem;font-weight:700;color:var(--color-white);background:var(--color-accent);padding:2px 8px;border-radius:2px;white-space:nowrap}.detail-body p{font-size:.92rem;line-height:1.9;color:var(--color-text);margin-bottom:.75rem}.detail-back{margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid var(--color-border)}.back-link{font-size:.88rem;color:var(--color-primary);transition:color var(--transition)}.back-link:hover{color:var(--color-accent)}@media (max-width: 767px){.detail-layout{grid-template-columns:1fr}.detail-thumb{max-width:100%}}.not-found{padding:80px 0;text-align:center;display:flex;flex-direction:column;align-items:center;gap:1.5rem;color:var(--color-text-light)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d1;z-index:200;display:flex;align-items:center;justify-content:center;cursor:pointer;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-image{max-width:min(90vw,1000px);max-height:88dvh;object-fit:contain;border-radius:var(--radius);cursor:default;animation:scaleIn .2s ease}@keyframes scaleIn{0%{transform:scale(.94);opacity:0}to{transform:scale(1);opacity:1}}.modal-close{position:fixed;top:20px;right:24px;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:#ffffff26;border:1px solid rgba(255,255,255,.3);border-radius:50%;color:var(--color-white);font-size:1rem;cursor:pointer;transition:background var(--transition)}.modal-close:hover{background:#ffffff47}